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89 Pages

### ch12

Course: PHYSICS 101, Fall 2008
School: Johns Hopkins
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Word Count: 10854

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(a) 1. The center of mass is given by xcom = [0 + 0 + 0 + (m)(2.00) + (m)(2.00) + (m)(2.00)]/6.00m = 1.00 m. (b) Similarly, ycom = [0 + (m)(2.00) + (m)(4.00) + (m)(4.00) + (m)(2.00) + 0]/6m = 2.00 m. (c) Using Eq. 12-14 and noting that the gravitational effects are different at the different locations in this problem, we have xcog = x1m1g1 + x2m2g2 + x3m3g3 + x4m4g4 + x5m5g5 + x6m6g6 = 0.987 m. m1g1 + m2g2 + m3g3...

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